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Cheap flights from Louisville to Sydney from $549

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:37 pm - 6:55 am
SDF
-
SYD
25h 18m
2 stops
United Airlines Logo
10:20 am - 6:35 pm
SYD
-
SDF
22h 15m
2 stops
$1,129United Airlines
Tue, May 12 - Wed, May 20
Delta Logo
4:26 pm - 6:50 am
SDF
-
SYD
48h 24m
2 stops
Delta Logo
9:15 am - 5:12 pm
SYD
-
SDF
21h 57m
2 stops
$1,145Delta
Sat, May 16 - Mon, May 25
United Airlines Logo
3:36 pm - 6:55 am
SDF
-
SYD
25h 19m
2 stops
United Airlines Logo
10:20 am - 8:23 pm
SYD
-
SDF
24h 03m
2 stops
$1,177United Airlines
Tue, May 12 - Fri, May 22
United Airlines Logo
3:41 pm - 7:00 am
SDF
-
SYD
25h 19m
2 stops
United Airlines Logo
9:30 am - 8:01 pm
SYD
-
SDF
24h 31m
2 stops
$1,178United Airlines
Tue, Jun 9 - Wed, Jun 17
United Airlines Logo
2:00 pm - 6:55 am
SDF
-
SYD
26h 55m
2 stops
United Airlines Logo
10:20 am - 8:23 pm
SYD
-
SDF
24h 03m
2 stops
$1,224United Airlines
Thu, May 14 - Fri, May 22
United Airlines Logo
3:15 pm - 9:15 am
SDF
-
SYD
27h 00m
2 stops
United Airlines Logo
10:20 am - 4:37 pm
SYD
-
SDF
20h 17m
1 stop
$1,259United Airlines
Tue, Mar 17 - Thu, Apr 30
United Airlines Logo
1:58 pm - 8:05 am
SDF
-
SYD
27h 07m
2 stops
United Airlines Logo
9:30 am - 6:36 pm
SYD
-
SDF
23h 06m
2 stops
$1,264United Airlines
Tue, Mar 17 - Thu, Apr 30
Air New Zealand Logo
9:30 am - 8:45 am
SDF
-
SYD
33h 15m
2 stops
Air New Zealand Logo
9:55 am - 10:14 pm
SYD
-
SDF
26h 19m
2 stops
$1,265Air New Zealand
Wed, Aug 26 - Sat, Sep 5
Air New Zealand Logo
9:30 am - 10:40 am
SDF
-
SYD
35h 10m
2 stops
Air New Zealand Logo
11:55 am - 10:14 pm
SYD
-
SDF
24h 19m
2 stops
$1,266Air New Zealand
Wed, Aug 26 - Sat, Sep 5
United Airlines Logo
3:36 pm - 6:55 am
SDF
-
SYD
25h 19m
2 stops
United Airlines Logo
10:20 am - 6:35 pm
SYD
-
SDF
22h 15m
2 stops
$1,272United Airlines
Sat, May 16 - Wed, May 20

United Airlines flights from Louisville to Sydney

Our best United Airlines deals on Louisville to Sydney flight tickets
United Airlines
May 12
SDF3:37 pmLouisville Intl
25h 18m
2 stops
SYD6:55 amSydney Kingsford Smith
May 20
SYD10:20 amSydney Kingsford Smith
22h 15m
2 stops
SDF6:35 pmLouisville Intl
$1,129
United Airlines
May 12
SDF3:36 pmLouisville Intl
25h 19m
2 stops
SYD6:55 amSydney Kingsford Smith
May 22
SYD10:20 amSydney Kingsford Smith
24h 03m
2 stops
SDF8:23 pmLouisville Intl
$1,177
United Airlines
Jun 9
SDF3:41 pmLouisville Intl
25h 19m
2 stops
SYD7:00 amSydney Kingsford Smith
Jun 17
SYD9:30 amSydney Kingsford Smith
24h 31m
2 stops
SDF8:01 pmLouisville Intl
$1,178

Delta flights from Louisville to Sydney

Our best Delta deals on Louisville to Sydney flight tickets
Delta
May 16
SDF4:26 pmLouisville Intl
48h 24m
2 stops
SYD6:50 amSydney Kingsford Smith
May 25
SYD9:15 amSydney Kingsford Smith
21h 57m
2 stops
SDF5:12 pmLouisville Intl
$1,145
Delta
Mar 19
SDF6:15 amLouisville Intl
32h 50m
2 stops
SYD6:05 amSydney Kingsford Smith
Apr 5
SYD9:15 amSydney Kingsford Smith
27h 28m
2 stops
SDF10:43 pmLouisville Intl
$1,430
Delta
Mar 19
SDF8:05 amLouisville Intl
31h 00m
2 stops
SYD6:05 amSydney Kingsford Smith
Apr 5
SYD9:15 amSydney Kingsford Smith
27h 28m
2 stops
SDF10:43 pmLouisville Intl
$1,480

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 5, 2026.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 5/12

3:37 pm-6:55 am

2 stops25h 18m

Sydney Kingsford Smith

Wed 5/20

10:20 am-6:35 pm

2 stops22h 15m

$1,129

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 5/16

4:26 pm-6:50 am

2 stops48h 24m

Sydney Kingsford Smith

Mon 5/25

9:15 am-5:12 pm

2 stops21h 57m

$1,145

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 5/12

3:36 pm-6:55 am

2 stops25h 19m

Sydney Kingsford Smith

Fri 5/22

10:20 am-8:23 pm

2 stops24h 03m

$1,177

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

3:41 pm-7:00 am

2 stops25h 19m

Sydney Kingsford Smith

Wed 6/17

9:30 am-8:01 pm

2 stops24h 31m

$1,178

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 5/14

2:00 pm-6:55 am

2 stops26h 55m

Sydney Kingsford Smith

Fri 5/22

10:20 am-8:23 pm

2 stops24h 03m

$1,224
Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 3/17

3:15 pm-9:15 am

2 stops27h 00m

Sydney Kingsford Smith

Thu 4/30

10:20 am-4:37 pm

1 stop20h 17m

$1,259

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 3/17

1:58 pm-8:05 am

2 stops27h 07m

Sydney Kingsford Smith

Thu 4/30

9:30 am-6:36 pm

2 stops23h 06m

$1,264

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

9:30 am-8:45 am

2 stops33h 15m

Sydney Kingsford Smith

Sat 9/5

9:55 am-10:14 pm

2 stops26h 19m

$1,265

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

9:30 am-10:40 am

2 stops35h 10m

Sydney Kingsford Smith

Sat 9/5

11:55 am-10:14 pm

2 stops24h 19m

$1,266

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 5/16

3:36 pm-6:55 am

2 stops25h 19m

Sydney Kingsford Smith

Wed 5/20

10:20 am-6:35 pm

2 stops22h 15m

$1,272

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, November is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,228. If you are unable to visit Sydney during the month of November, then departing from Louisville during the month August is also very affordable. Most momondo users find prices during this month for around $1,232.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

25h 19m

Direct flights

None
The fastest flight from Louisville to Sydney takes 25h 19m
There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.
Search flight deals

  • How far is Louisville Intl to Sydney Kingsford Smith by plane?

    A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 25h 19m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $973Free CancellationRating
7.4
9,389 reviews
Search United Airlines flights
DeltaPriceFrom $985Free CancellationRating
7.9
8,248 reviews
Search Delta flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Katoomba
Parramatta
Wollongong
Penrith
Coogee
Manly
Randwick
Lithgow
Leura
Cronulla
Charlestown
Terrigal
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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